Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Tsumori Fujio,Fast Contact Detection Method for Discrete Element Method using Non-Spherical Particles,Journal of the Japan Society of Powder and Powder Metallurgy,05328799,Japan Society of Powder and Powder Metallurgy,2009,56,10,598-603,https://cir.nii.ac.jp/crid/1390282681283773056,https://doi.org/10.2497/jjspm.56.598